What are the extremes of the following proportion?

3⁄15 = 12⁄60

A. 12 and 60

B. 3 and 15

C. 15 and 12

D. 3 and 60

The correct answer for the question that is being presented above is this one: "D. 3 and 60." The means of the proportion is 15 and 12. The means-extremes property of proportions allows you to cross multiply, taking the product of the means and setting them equal to the product of the extremes.